Nerdulator> put something in

Recognised as Colour

#566F7B

  • #566F7B
  • Cyan
  • Dark
  • Nearest: Slate grey

#566F7B is a cyan with RGB values 86, 111, 123 and HSL 199°, 18%, 41%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Slate grey.

Colour values

#566F7B#566F7B
HEX#566F7B
RGBrgb(86, 111, 123)
RGB (0–1)0.3373, 0.4353, 0.4824
RGB percentages33.7%, 43.5%, 48.2%
HSLhsl(199.5, 17.7%, 41%)
HSV / HSBhsv(199.5, 30.1%, 48.2%)
CMYK30.1%, 9.8%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,664,635
CSS custom property--colour: #566F7B;

Brightness & contrast

Relative luminance0.14777WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.31:1
Contrast with white5.31:1WCAG normal text: AA
Contrast with black3.96:1WCAG normal text: Fail
Greyscale equivalent#6B6B6B
Inverted#A99084

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#696E7Cno red cones; affects about 1% of men; ΔE 7.5 from the original
Deuteranopia#63697Bno green cones; the most common form, about 1% of men; ΔE 8.1 from the original
Tritanopia#4A7373no blue cones; rare, and affects men and women equally; ΔE 9.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.31:1WCAG large text: AAA
Contrast with black, large text3.96:1WCAG large text: AA

Named colours

Slate grey · ΔE 8.5Light slate grey · ΔE 11.4Dim grey · ΔE 11.4Gray · ΔE 14.1Dark slate grey · ΔE 16.3Cadetblue · ΔE 21
Nearest named CSS colourSlate grey (#708090)ΔE 8.54, clearly different but related
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7B6256
Analogous#567B75, #565D7B
Triadic#7B566F, #6F7B56
Split complementary#7B565D, #7B7556
Tetradic#75567B, #7B6256, #5C7B56

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6D2D7
Lighter +30%#A8BAC2
Lighter +20%#8AA2AD
Lighter +10%#6C8A98
Darker −10%#41545D
Darker −20%#2C393F
Darker −30%#171E21
Darker −40%#020303
More saturated +25%#3C7895
Less saturated −25%#696969

Channel breakdown

R86
G111
B123
Red86 (33.7%)
Green111 (43.5%)
Blue123 (48.2%)
Hue199.46°
Saturation (HSL)17.7%
Lightness40.98%
Dominant channelBlue
Hex per channelR 56 · G 6F · B 7B

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “566f7b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.